Spring compressor



June 19, 1923. L45992 c. A. FRESCO-r1- SPRING COMPRESSOR Filed Oct. 18. 1921 WW///4 Arm/mns Patented dune i9, lg3d'.

narran lstares,

y i rasate@ rar-gaar I CHARLES A. rnnsoorfr, orrnovrnnnon, nrrolnu"Irsztiiivn` y srnnve coiurnnsson. y

appagante inea october 1e, 192i. 'seriainenaossi To all 07mm it mag/concern: V

Be it known that I, CIiARLns A. Pnnsoorr, a citizen of the'United States, and a resident of Providence, in the county of Providence and State of Rhode Island, have invented a new and Improved Spring Compressor, of which the following is a full, clear, and exact description.

rI his invention relates to improvements in spring compressors, an object of the inven tion being to provide a device of this charb acter with which a valve spring may be quickly compressed, and to provide means for holding the spring in compressed position when it is removed from the compressor.

A further object is to provide a device of,

this character, which will be simple and practical in construction, strong, durable and efficient in use, and which will be comparatively inexpensive to manufacture.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims. i

In the accompanying drawings:

Figure 1 is a view in side elevation showing my improved compressor attached to a` support and the manner of use of the same Figure 2 is a view in transverse section on the line 2-2 of Figure 1; and y Figure 3 is a fragmentary view similar to Figure Q, showing a modified form of comcompressor base 3 is formed with a threaded socket 5 in its upper end and a vertical stud 6 screwed into the socket yis also screw threaded at its upper end, as indicated at 7.

It will be noted that the compressor base` is formed with a groove 8 extending transversely across its upper end for a purpose which will be` hereinafter explained. An upwardly extending post 9 integral with the bracket or frame 2, has a plurality of open` ings 10'pro`vided at its upper end. A lever 11 includes a bifur'catedv end 12 straddling the post 9 and ascrewor `pin 1? serves to `selectively pivot the lever in any one'y of the openings 10.\ Any' suitable handle such as 111 is provided at the free `end of the lever.

This lever carries a compressor head 15 atl its intermediate portion, thehead being provided with an `opening 16 accommodating" the stud 6 and of sufficient size to allow swinging of the lever over the stud.

17 represents avalve spring positionedon the stud 6. b The valve spring cup 18 is engaged by the compressor head 15 and the lever is moved to compress the spring. The groove 8 in the compressor base permits the use of a pair of keys such as `19. When the spring' is in `compressed position, the` inwardly presented straightlower ends 20of"V the keys are projected into opposite sides of the groove 8 under the valve spring and the upper hookedends 21 of the keys are hooked over the cup 18. When the lever `111 is raised, thespring may be lifted 0H" the compressor and inserted in the valve, any suitable tool being `used to remove the keys 19 after the spring is in position. These keys which are diametrically opposed with rela-` tion to the spring not only prevent eXpanvsion of the spring, but also prevent its lateral twisting or bending out of shape. y

In Figure 3, yI have shown a compressor head 22, which has screw threaded engagement with the stud 6, and which is equipped with wings 23 after the manner of a wing nut to permit its manual turning. rIhe body g portion of the compressor is preferably angular in shape,` as indicated at 24, to permit the use of a wrench when it becomes necessary to compress unusually stiff springs.`

Although I have illustrated certain of the preferred embodiments of vmy invention, it will be obvious that various slight `changes `and alterations might be made in the general form and arrangement of the parts described without departing from the inven-` tion, and hence I do not wish to limit myself tothe precise details set.forth,`but shall `consider myself at liberty to make ion such slight changes and alterations as fairly fall within the spirit and scope of the appended claims. r 1

. I claim: l

to be attached to a support, a compressor 'y 11o 1. In a spring compressor, a frame adapted baseintegral with the frame, a lever pivoted on the frame, a compressor head carried by the lever, and a centering device interposed between the base and head.

2.k In a spring compressor, a frame adapted to be attached to a support, a compressorl base integral with the frame, a lever pivoted on the frame, a compressor head carried by the lever, a centering device interposed between the base and head, and said centering device comprising a post rising from the base and extending through the head. Y

, 3. ln a spring compressor, a frame adapted to be attached toca support, a compressor base integral with the frame, a lever ,pivoted CHARLES A. PRESGOTT. 

